NEET BIOLOGY

Detailed explanation-1: -Sporophytes are the plant generation that produces spores. A haploid gametophyte phase follows a diploid sporophyte phase in the life cycle of seedless vascular plants. Vascular plants without seeds reproduce by the use of unicellular, haploid spores, which are light enough to be easily dispersed by the wind.

Detailed explanation-2: -Seedless vascular plants reproduce through unicellular, haploid spores instead of seeds; the lightweight spores allow for easy dispersion in the wind. Seedless vascular plants require water for sperm motility during reproduction and, thus, are often found in moist environments.

Detailed explanation-3: -Sporangia in Seedless Plants The sporophyte bears the sporangia (singular, sporangium): organs that first appeared in the land plants. The term “sporangia” literally means “spore in a vessel”: it is a reproductive sac that contains spores.

Detailed explanation-4: -Instead of seeds, the bodies of seedless plants grow from spores. A spore of a seedless plant is a tiny structure that is dispersed from the parent plant and can grow into a new plant body. A sperm from one plant must swim through water to fertilize the egg of another plant.

Detailed explanation-5: -In seedless vascular plants such as ferns, the sporophyte releases spores from the undersides of leaves. The spores develop into tiny, separate gametophytes, from which the next generation of sporophyte plants grows.